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Patent Searching and Data


Title:
MOTOR CONTROL DEVICE AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2018/198289
Kind Code:
A1
Abstract:
This motor control device (100) is provided with: an inverter (4) composed of a plurality of arms (4a); a smoothing means (3) which supplies DC voltage to the inverter (4); shunt resistors (7u, 7v, 7w), each inserted between a switching element of a lower arm of each phase of the inverter (4) and a negative electrode side of the smoothing means (3); a master motor current sensor (9) which outputs voltage according to the current that flows through a first motor (51) connected to the inverter (4) in parallel; and a calculator (6) which, on the basis of the output of the master motor current sensor (9) and an output according to the voltage drop of the shunt resistors (7u, 7v, 7w), generates a driving signal transmitted to the plurality of switching elements.

Inventors:
UEMURA, Keisuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
TAKAHASHI, Kenji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
WADA, Yasuhiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
TSUMURA, Akihiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/016829
Publication Date:
November 01, 2018
Filing Date:
April 27, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02P5/00
Foreign References:
JP2011239515A2011-11-24
JP4305021B22009-07-29
JP2002044804A2002-02-08
JP4305021B22009-07-29
Attorney, Agent or Firm:
TAKAMURA, Jun (Sakai International Patent Office, Toranomon Mitsui Building 8-1, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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